Its great that the big game rifle market is flourishing enough for Hollands to consider a new calibre worthwhile - even if I'll probably never be able to afford one.

. But isn't this the wheel being reinvented? I'm guessing that the cartridge will be based on a necked up .375 case, so that ammo supply won't be a problem. But apart from that, what will this round do that the old 450/.400 x 3" & 31/4" (or .400 Jeffery) couldn't do?